STM Observation of Labile Axial Ligands to Zinc Porphyrin at Liquid/Solid Interface

摘要

Observation of labile axial ligand coordination to zinc porphyrins on a graphite surface at liquid/solid interface was achieved by scanning tunneling microscopy. The presence of an axial ligand is clearly manifested as an increased height from the basal porphyrin molecule. Further, the trans and cis isomers of the phenylazopyridine ligand can be distinguished on a statistical basis.